#equip-tree {
  width: 15%;
  height: 100%;
  background: #1144ab;
  opacity: 0.7;
  border: 1px solid #669DFF;
  float: left;
}
.el-tree {
  background: #1144ab;
  color: #fff;
}
.el-tree-node__content:hover {
 background: #8daef4;
  color: #333;
}

.el-tree-node.is-current>.el-tree-node__content {
  color:#76c4f7
}